Posted: Thu Aug 16, 2007 9:45 am
On the second test I disconnected the fan switch so there is no way the fan switch can turn the fan on. If the fan switch is disconnected then the gnd signal can only come from the ECU. so that verifies the wiring and Ectune is correct just 7* off in my case. I waited till the temps got up to 198* at that point Ectune flagged the output and the fans turned on. I think my fan was not very good before and the temps would still climb to 200* thats when I noticed the fans are coming on at 198 instead of 191 through Ectune. The fan switch is turning the fans on at 190 so it is not a big deal now. I just was letting you know what happened that Ectune maybe 7* off. I will try what you sent me tonight.